Hi Xiaoyu,
please keep the previous conversation as inline citation below so I know what we discussed before.
What I mean is to process every subject only once and not twice (with flipped images, if that is what you did?).
Then run xhemi analysis on the subject-level. Invert the sign of the left-right difference depending on which is the diseased hemi. Then do a regular analysis on that. Nothing paired.
Best, Martin
On 30. Aug 2018, at 18:29, Wang, Xiaoyu xwang13@pennstatehealth.psu.edu wrote:
Thanks Martin,
Yes, I did mean to have the right hemisphere added to the left hemisphere as a new time point.
Can you explain on what you mean by run every subject only once? Do you mean to run xhemi for all of the subjects and then run a paired analysis?
Xiaoyu
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu mailto:Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer